CVE-2021-44463

mediumpriority · track · 29EPSS 0.003 · 18 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (18th) EPSS

CVSS 6.9 · medium

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Missing DLLs, if replaced by an insider, could allow an attacker to achieve local privilege escalation on the DeltaV Distributed Control System Controllers and Workstations (All versions) when some DeltaV services are started.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationDeltaV Distributed Control System Controllers and Workstationscisa_csaf_ot
DeltaV DCS: Versions 13.3.1, 14.LTS, 14.FP1, 14.FP2, and R6

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.7–8.1

v2.06.9mediumAV:L/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 10

v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.3 · impact 5.9

v3.08.1highCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:Hsecondary · CISA US

v3.18.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:Hsecondary · ics-cert@hq.dhs.gov USexploitability 1.5 · impact 6

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-427USprimaryCWE-427US

affected products (7)

Products and version ranges known to be affected.

DeltaV Distributed Control System Controllers and Workstations: All versionsall versionscisa_csaf_otUS
Emerson DeltaV Distributed Control System Controllers and Workstationsall versionscisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
emerson deltav= 13.3.1nvdUScpe:2.3:a:emerson:deltav:*:*:*:*:*:*:*:*
emerson deltav= 14nvdUScpe:2.3:a:emerson:deltav:*:*:*:*:*:*:*:*
emerson deltav= 14.3.1nvdUScpe:2.3:a:emerson:deltav:*:*:*:*:*:*:*:*
emerson deltav= r6nvdUScpe:2.3:a:emerson:deltav:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-355-04Emerson DeltaV2021-12-21icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to achieve local privilege escalation or restart a controller, resulting in a denial-of-service condition.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2022-01-28modified 2026-06-17

related (1,387)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-110936DE	medium6.7OT critical	0.97% (62nd)	KEV	2026-10-15
A vulnerability has been identified in Siemens Software Center (All versions < V4.0.9.8). The affected application loads dynamic-link libraries (DLLs) from an uncontrolled search p…
CVE-2020-3433US	high7.8OT critical	10.0% (96th)	KEV	2020-08-17
A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL…
CVE-2020-3153US	medium6.5OT critical	28.3% (98th)	KEV	2020-02-19
A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system…
CVE-2020-27955US	critical9.8	82.3% (100th)	Exploit	2020-11-05
Git LFS 2.12.0 allows Remote Code Execution.
CVE-2017-6517US	critical9.8	46.3% (99th)	—	2017-03-23
Microsoft Skype 7.16.0.102 contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on the targeted system. This vulnerability exists…

+1382 more

references (8)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan